Chair



Dec. 8, 1931.

G. DITI'MAR VGHAIR Filed Aug. 9. 1950 2 Sheets-Sheet 1 zeA a yfINVENTOR:

G. Dr'rTMAR CHAIR Filed Aug. 9. 1930 2 sheets-'sheet 2 ATTORNEY.

Patented Dec. 8, 1931 UNi'raD STATES PATENT Q FFECE GUSTAV DITTMAR, onsT. LoUIs, MIssoURI,l AssrGNoR orl ONE-HALF To ARTHUR o'.v

WILKENING, oF sT. LoUIsl` MrssoURI CHAIR Application filed August 9,

My invention relates to chairs, and, more particularly to porch and lawnchairs.

The object of my invention is to provide a chair wherein the chair back,seat and the 5 arm rests thereof may be readily 'adjusted' to severaldesired angles with respect to the frame thereof.

A further object of the inventionk is the provision of a foot actuatedlever, which '10 when depressed at its rearmost end, will tend toelevate the back of the chair sufficiently to remove an element thereoffrom receiving recesses' therefor to permit changing the inclination ofthe chair back.

A further object of the invention is the provision of slidableconnections between the chair back and the arm rests of the chair sothat the arm rests will change the angle of their position with that ofthe chair back when moved from one position to another.

A still further object of the invention is the provision of anadjustable chairwhich possesses advantages in points of simplicity andefhciency, and, at the same timey proves itself comparativelyinexpensive in cost of manufacture,

With the above and other objects in view, the invention consists in thenovel'features of construction, arrangement and combination of partshereinafter' more fully described and finally pointed out in the claimshereto appended.

n Referring to the accompanying drawings forming a part of thisspeciiication, wherein like characters of reference denote similar partsthroughout the several views:

Fig. 1 is a vertical sectional view of a chair embodying the features ofmy invention.

Fig. 2 is a view showing` the arm rests in cross section and the meansfor slidably supporting the rear ends thereof.

Fig. 3 is a lower plan view of the rear `p'o-rtion of one of the armrests.

Fig. 4 isa front elevation of the chair; f

Fig. 5 is a sectional elevation taken on line 5-5 of Fig. 1.

Fig. 6 is a detail showing the connection 1930. serial No. 474,167.

suitable vertical front legs 1, a pair of 'suit-j 55 i able side legmembers 2, the upper and lower front cross rails 3 and 4,respectively,the

gear cross rail 5 and-a pair of side rack memers 6. l

The side leg members 2 are suitably fixed 0 at their forward ends to thefront legs 1. The side. members 2 are directed downwardly and rearwardlyfrom the front legs 1 and are each provided at their rear ends with alower flat face 7 to act as a rear foot for each side 05 leg 2 of thechair. The front crossrails 3l and 4 are suitably connected at theirendsto the front legs 1 and the. rear cross rail 5 is suitably connectedto the side leg` members 2, as will be apparent from Figure y1. 70 Incarrying out the aimof my inventiomI employ a suitable chair seatdesignated generally as A and embodying a vpair of side cleats 8 uponwhich are secured a plurality of cross seat boards 9. The seatcleats 8are 75 also provided with a rear cross cleat member 10 having aninclined forward face 11. The cleat 10 is spaced from the rearmost seatboard 9 so as to provide a transverse slotted passage 12 through which achair back' des- 80- ignated generally as B passes, as shown invFigure 1. The chair seat A is hingedly connected at its forward cornersby means ofsuitable hinge members 13 secured to each of the1 seat cleats8 and the upper front cross 85 rai 3. 5 1

The chair back lB embodies a plurality of suitablel boards 14, whichboards are united in suitable spaced relation by means of the cleatmembers 15, 16, 17 and 18. Th'echairy 99 back cleats 16, 17 and 18extendbeyond the side edges of the chair back, as will be' apparent fromFig. 4, the purposeof which will be apparent hereinafter.

' he chair frame is provided with a pair 95: of suitable arm rests 19which arepivotally connected, as at 20, near their forwardedge Y totheupper ends of the front legs 1. i

The rear'end portions ofthe arm rests19` are mounted'up'ontheextendingends`21 of the v'chair back cleat 16 which supports the rear ends of thehinged arm rests 19. The under face of each arm rest 19, at the rear endthereof, is provided with a longitudinal recess 22 cleat A16 and alsoprevents the arm rests 19 from being accidentally lifted upwardly anddisconnected from their supporting ends 21 of the cleat.

The rear ends of the seat cleats 8 are adaptedy to rest upon theextended ends 26 of the cleat 17 of the chair back B which act as asupport therefor and the extremities of this cleat stop short of theinner faces of theside legmembers 2, as shown in. Fig. 4.

The ends 27V of the chair back cleat 18 are adapted to seat themselvesin recesses 28, 29 or 30 ofthe side racks 6, which racks actas supportsfor the chair back and limit downward movement of the chair back B.

A suitable foot actuated lever 31 is pivoted below the rear cross cleat5 by means of the pin connection 32 supported by a suitable strap member33 carried by the rear cross cleat 5. The foot actuated lever isprovided with a suitable foot plate 34 at its rear end, which is adaptedto be engaged by means of the foot of the operator-when it is desired tochange the inclination of the chair back B. The foot lever 31 extendsforwardly from thel rear cross cleat 5 and passes through a slottedpassage 35 at the lower end of the chair back and the lower end ofthepassage is closed by means of a suitable strap member 36 which limitsdownward movement'of the forward or long end of the foot lever 31.

Y A pair of stopcleats 37 are secured' to the inner faces of the sideracks 6 to limit eX- treme upward movement of the chair back B whenlifting the cleat 18 from the recesses of the side racks for changingthe inclination of the chair back.

To change the inclination of the chair back Y which simultaneouslychanges the angle or position of the chair seat and lthe arm reststherewith, the operator presses downupon the lever plate 34, whichcauses the upper edge of the forward end portion of the lever 31 toengage the lower edge 38 of the cleat 18 of the chair back. therebyraising the supporting ends 27 of the chair baclr cleat 18 Y upwardlyout of the side rack recesses, in 80 which ever pair Vof rack recessesthey may beseated, and when this has been done, the operatorbygraspingthe upper end, of the chair back may move, or swing the chairback v`to *they desired inclination andi-lien allow the vends 27 ofthecleat 18 to drop into thedesired theA number of positions the chair backcan be moved into will depend upon the number of recesses carried by theside racks 6. In adpisting the chair back, it will be observed that thechair seat and the arm rests always vchange their positions therewith;

The many advantages of the herein described invention will readilysnggest themselves to those slrilled'in the art to which it appertains.

From the foregoing description, it is evident-that a simple device forthis purposel has been disclosed, but it is to be understood that l donot desire to restrict, or limitl inyself'to the very details of theconstruction shown and described` which is merely illustrative, it beingobvious that changes, not involving the exercise of invention, Y may bemade without conflicting or departing from the spirit of the inventionwithin the scope of the appended claims. e

That I claim is :v Y

1. In a chair construction, a frame Vhav ing a pair of its side membersprovided with a plurality Yof recesses, a seat having a slotted openinghinged at its forward end to the frame, al chair back passing throughthe slotted opening of the seat, a transverse cleat on the backk theends of which support the rear end portion of the seat, a secondtransverse cleat on the chair back disposed below the i'irst mentionedcleat and having its ends seated in a pair of the frame recesses, a pairof arm rests hingedly connected at their forward ends to the frame,thirdtransverse cleat on the chair back disposed above the firstmentioned cleat and having` its ends supporting the rear ends ofthe armrests and a sliding connection between the ends of said the frame, achair back passing through the slotted opening of the seat, 4atransverse cleat l on the back the endsV of which support the rear endportion of the seat, a second transverse cleat on the chair backdisposed below the first mentioned cleat and having its ends seated in apair of the frame recesses, apair of arm rests hingedly connected attheir forward ends to the frame, a third transverse cleat on the chairback disposed Aabove the first mentionedvcleat and'having its endssupporting-the rearends of the armrests, a sliding connection betweenthe ends ofsaidtliird mentioned cleat and the rearends of thel arm restsand a foot actuated lever pivoted to the frame and disposed below thechair back adapted when depressed at its rear end to elevate thechairrback for elevating the low ermost chair back cleat from engagementwith the frame recesses to permit moving of the chair back from oneposition to another.

3. An adjustable chair comprising a frame, a seat, a chair back and' apair of arm rests, said seat being hinged aty its forward end to theframe and supported at its rear end by the back, said arm rests beingpivotally connected at their forward ends to the frame and havingslidable connection at their rear c ends with the back, means carried'at the lower end' of the back and engageable in recesses upon oppositesides of the frame below the seat for holding the back in any one of itsadjusted positions.

4. An adjustable chair comprising a frame, a seat, a chair back and apair of armrests, said seat being hinged at its forward end to the frameand supported at its rear end by the back, said arm rests beingpivotally connected' at their forward ends to the frame and havingslidable connection at their rear ends with the back, means carried atthe lower end of the back and engageable in recesses upon opposite sidesof the frame below the seat, a pair of arm rests pivoted at their frontends to the front legs, a cross cleat carried by the chair back, theends of which support the rear vends of the armrests, means for slidablyconnecting the. rear ends of the arm rests with the ends of said cleat,a cross cleat carried near the lower end of the chair back, the ends ofwhichare seated in the recesses of the side racks, a footactuated leverpivoted to the frame and disposed below the chair back for raising thelatter lcleat from the siderack recesses prior to adjusting theY chairback from one position to another and means for limiting upward movementof.

the chair back while making adjustments thereof. Y I l l In testimonywhereof, I havehereunto affiXed my signature. 'j

- GUSTAV DITTMAR.

seat for holding the back in any one of its I adjusted positions andfoot actuated means l for disengaging the means carried by the back fromthe frame recesses prior to changing the position of thechair back whichsimultaneously changes therewith the position of the seat and the armrests relative to the frame.

5. An adjustable chair comprising a frame, a seat, a chair back and apair of arm rests, said seat being hinged at its forward end to theframe and supported at its rear end by the back, said arm rests beingpivotally connected at their forward ends to the frame and havingslidable connection at their rear ends with the back, means carried atthe low-y er end of the back and engageable in recesses upon oppositesides of the frame below the seat for holding the back in any one of itsadjusted positions, foot actuated means for disengaging the meanscarried by the back from the frame recesses prior to changing' theposition of the chair back which simultaneously chang-es therewith theposition of the seat and the arm rests relative to the frame and meanscarried by the frame yadapted to limit upward movement of the chair backwhen making adjustments thereof.

6. A chair comprising a frame including vertical front legs, a pair ofinclined side leg members, front cross rails and a rear cross. rail, aseat hingedly connected at its front end to one of the front crossrails, a pair of side racks having upper facial recesses connecting thelowermost of the front cross Vrails with the rear cross rail, a movablechair back, a cross cleat carried by the chair back, the ends of whichsupport the rear end of the

